发明名称 |
Projection screen for large screen pictorial display |
摘要 |
A front projection screen for pictorially displaying upon a front face of the screen an image projected onto the front face from a projector comprises a backing member having a front reflective surface and a polarization rotation plate overlaying the reflective surface for rotating the plane of polarization of light reflected from the surface. A sheet of lenticular lenses overlays the polarization rotation plate and a polarizing film overlays the lenticular lens sheet. The polarizing film has non-polarizing segments at a focal point of each of the lenticular lenses so that light from the projector is not attenuated by the film while light from other sources is attenuated.
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申请公布号 |
US5625489(A) |
申请公布日期 |
1997.04.29 |
申请号 |
US19960590916 |
申请日期 |
1996.01.24 |
申请人 |
FLORIDA ATLANTIC UNIVERSITY |
发明人 |
GLENN, WILLIAM E. |
分类号 |
G03B21/60;(IPC1-7):G03B21/60 |
主分类号 |
G03B21/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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